<template>
  <div>
    <!-- 面包屑导航区域-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片区域 -->
    <el-card class="box-card">
      <!-- 搜索框 -->
      <el-row :gutter="20">
        <el-col :span="9">
          <el-input
            placeholder="请输入内容"
            v-model="userQueryInfo.query"
            clearable
            @clear="getUserList"
          >
            <el-button
              slot="append"
              icon="el-icon-search"
              @click="getUserList"
            ></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addlogVisible = true"
            >添加用户</el-button
          >
        </el-col>
      </el-row>
      <!-- 列表内容 -->
      <template>
        <el-table :data="UserList" style="width: 100%" border stripe>
          <el-table-column type="index" label="#"></el-table-column>
          <el-table-column prop="username" label="姓名"></el-table-column>
          <el-table-column prop="email" label="邮箱"></el-table-column>
          <el-table-column prop="mobile" label="电话"></el-table-column>
          <el-table-column prop="role_name" label="角色"></el-table-column>
          <el-table-column label="状态">
            <!-- 作用域插槽 -->
            <template slot-scope="scope">
              <el-switch
                v-model="scope.row.mg_state"
                @change="userStateChange(scope.row)"
              ></el-switch>
            </template>
          </el-table-column>
          <el-table-column label="操作" width="180px">
            <template slot-scope="scope">
              <!-- 编辑按钮 删除按钮 分配角色按钮 -->
              <el-button
                type="primary"
                icon="el-icon-edit"
                size="mini"
                @click="showEditDialog(scope.row.id)"
              ></el-button>
              <el-button
                type="danger"
                icon="el-icon-delete"
                size="mini"
                @click="removeUserById(scope.row.id)"
              ></el-button>
              <el-tooltip
                effect="dark"
                content="分配角色"
                placement="top"
                :enterable="false"
              >
                <el-button
                  type="warning"
                  icon="el-icon-setting"
                  size="mini"
                  @click="setRole(scope.row)"
                ></el-button>
              </el-tooltip>
            </template>
          </el-table-column>
        </el-table>
      </template>
      <!-- 分配角色对话框 -->
      <el-dialog
        title="提示"
        :visible.sync="setRoledialogVisible"
        width="50%"
        @close="editRolesDialogClosed"
      >
        <div>
          <p>当前用户：{{ userinfo.username }}</p>
          <p>当前角色：{{ userinfo.role_name }}</p>
          <p>
            分配新角色：
            <el-select v-model="selectdRoleId" placeholder="请选择">
              <el-option
                v-for="item in rolesList"
                :key="item.id"
                :label="item.title"
                :value="item.id"
              >
              </el-option>
            </el-select>
          </p>
        </div>
        <span slot="footer" class="dialog-footer">
          <el-button @click="setRoledialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="saveRoleId">确 定</el-button>
        </span>
      </el-dialog>

      <!-- 添加用户对话框 -->
      <el-dialog
        title="添加用户"
        :visible.sync="addlogVisible"
        width="50%"
        @close="addDialogClosed"
      >
        <!-- 内容主体区域 -->
        <el-form
          :model="addForm"
          :rules="addFormRules"
          ref="addFormRef"
          label-width="70px"
        >
          <el-form-item label="用户名" prop="username">
            <el-input v-model="addForm.username"></el-input>
          </el-form-item>
          <el-form-item label="密码" prop="password">
            <el-input v-model="addForm.password"></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="addForm.email"></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input v-model="addForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <!-- 底部区域 -->
        <span slot="footer" class="dialog-footer">
          <el-button @click="addlogVisible = false">取 消</el-button>
          <el-button type="primary" @click="addUser">确 定</el-button>
        </span>
      </el-dialog>
      <!-- 修改用户的对话框 -->
      <el-dialog
        title="修改用户信息"
        :visible.sync="editDialogVisible"
        width="50%"
        @close="editDialogClosed"
      >
        <!-- 修改信息内容 -->
        <el-form
          :model="editForm"
          :rules="editFormRules"
          ref="editFormRef"
          label-width="70px"
        >
          <el-form-item label="用户名">
            <el-input v-model="editForm.username" disabled></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="editForm.email"></el-input>
          </el-form-item>
          <el-form-item label="电话" prop="mobile">
            <el-input v-model="editForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
          <el-button @click="editDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="editUser">确 定</el-button>
        </span>
      </el-dialog>
      <!-- 分页区域 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="userQueryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]"
        :page-size="userQueryInfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      >
      </el-pagination>
    </el-card>
  </div>
</template>

<script>
export default {
  name: 'Users',
  data() {
    // 验证自定义邮箱规则
    var checkEmail = (rule, value, callback) => {
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      if (regEmail.test(value)) {
        // 合法邮箱
        return callback()
      } else {
        callback(new Error('请输入合法邮箱'))
      }
    }
    // 验证自定义手机号规则
    var checkMobile = (rule, value, callback) => {
      const regMobile = /^(0|86|17951)?(13[0-9]|15[0123456789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if (regMobile.test(value)) {
        // 合法邮箱
        return callback()
      } else {
        callback(new Error('请输入合法手机号'))
      }
    }
    return {
      userQueryInfo: {
        query: '',
        // 当前的页数
        pagenum: 1,
        // 当前每页显示多少条
        pagesize: 2
      },
      UserList: [],
      total: 0,
      // 控制添加用户对话框的显示 于隐藏
      addlogVisible: false,
      // 分配角色对话框
      setRoledialogVisible: false,
      // 需要被分配角色的用户信息
      userinfo: {},
      // 角色列表
      rolesList: {},
      // 被选中的角色id
      selectdRoleId: '',
      // 控制编辑用户对话框的显示和隐藏
      editDialogVisible: false,
      // 添加用户的表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 编辑查询用户的个人信息对象
      editForm: {},
      // 修改用户的表单对象规则
      editFormRules: {
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 用户验证
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在3-10个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在3-10个字符', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机号', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      }
    }
  },
  created() {
    this.getUserList()
  },
  methods: {
    // 监听pagesize改变的事件
    handleSizeChange(newsize) {
      console.log('每页' + newsize + '条')
      this.userQueryInfo.pagesize = newsize
      this.getUserList()
    },
    // 监听当前页变化的事件
    handleCurrentChange(newpage) {
      console.log('当前页' + newpage)
      this.userQueryInfo.pagenum = newpage
      this.getUserList()
    },
    // 获取用户列表
    async getUserList() {
      const { data: res } = await this.$http.get('user/userlist', { params: this.userQueryInfo })
      if (res.meta.status !== 200) {
        return this.$message.error('获取数据失败')
      }
      this.UserList = res.data.users
      this.total = res.data.total
      // console.log(res.data)
    },
    async userStateChange(userInfo) {
      // console.log(userInfo)
      // 模版字符串
      const { data: res } = await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)
      if (res.meta.status !== 200) {
        userInfo.mg_state = !userInfo.mg_state
        return this.$message.error('设置用户状态失败')
      } else {
        return this.$message.success(res.meta.msg)
      }
    },
    // 监听添加用户对话框的关闭事件
    addDialogClosed() {
      this.$refs.addFormRef.resetFields()
    },
    // 监听修改用户对话框的关闭时间
    editDialogClosed() {
      this.$refs.editFormRef.resetFields()
    },
    // 提交前校验表单
    addUser() {
      this.$refs.addFormRef.validate(async valid => {
        if (!valid) return
        // 发起真正的网络请求
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) {
          return this.$message.error('添加用户失败')
        } else {
          this.$message.success('添加用户成功')
          // 隐藏用户的对话框
          this.addlogVisible = false
          // 刷新用户列表
          this.getUserList()
        }
      })
    },
    // 修改用户预先验证操作
    editUser() {
      this.$refs.editFormRef.validate(async valid => {
        if (!valid) return
        // 发起网络请求
        const { data: res } = await this.$http.put(`roles/setRole/${this.editForm.id}`, { email: this.editForm.email, mobile: this.editForm.mobile })
        if (res.meta.status !== 200) {
          this.$message.error('修改用户信息失败')
        }
        this.$message.success('修改用户信息成功')
        this.editDialogVisible = false
      })
    },
    // 修改用户的对话框
    async showEditDialog(id) {
      // 根据id 查询用户信息
      const { data: res } = await this.$http.get(`roles/setRole/?uid=${id}`)
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户信息失败')
      }
      this.editForm = res.data
      this.editDialogVisible = true
    },
    // 删除用户
    async removeUserById(id) {
      // console.log(id)
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(() => {
        this.$message({
          type: 'info',
          message: '已取消删除'
        })
      })
      // 如果用户确认删除 则返回值为字符串confirm
      // 如果用户取消删除 则返回值为字符串cancel
      if (confirmResult === 'confirm') {
        const { data: res } = await this.$http.delete(`users/${id}`)
        if (res.meta.status !== 200) {
          this.$message.error('删除用户失败')
        }
        this.$message.success('删除用户成功')
        this.getUserList()
      }
    },
    // 分配角色
    async setRole(userinfo) {
      this.userinfo = userinfo
      // 在分配角色前 展示所有的角色列表
      const { data: res } = await this.$http.get('roles/setRole')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败')
      }
      this.rolesList = res.data.roleList
      this.setRoledialogVisible = true
    },
    // 修改角色
    async saveRoleId() {
      if (!this.selectdRoleId) {
        return this.$message.error('请分配用户角色')
      }
      const { data: res } = await this.$http.get('roles/updateRole?id=' + this.userinfo.id + '&rid=' + this.selectdRoleId)
      if (res.meta.status !== 200) {
        return this.$message.error('修改失败')
      }
      this.$message.success('修改成功')
      this.getUserList()
      this.setRoledialogVisible = false
    },
    // 分配角色的回调
    editRolesDialogClosed() {
      this.selectdRoleId = ''
      this.userinfo = {}
    }
  }
}
</script>

<style lang="less" scoped>
</style>
